CUTTING PLATE AND READY-MADE CUTTING TOOL Russian patent published in 2014 - IPC B23B27/00 B23C5/20 B23D77/00 

FIELD: metallurgy.

SUBSTANCE: cutting plate is meant for installation and fixation of ready-made cutting tool in a seat. It is restricted by opposite butt ends, on one of them there is the first supporting surface for interaction with the first supporting wall of the seat for housing of ready-made cutting tool and a side surface between them at the intersection of which with butt end opposite to the side surface there located are two cutting edges, and it has two minor cutting edges and a through hole meant for arrangement of fasteners of ready-made cutting tool. Two projections are made on supporting surface symmetrical about the axis of the through hole. Each projection includes the first section passing from the through hole to the side surface along the main cutting edge and provided with the second supporting surfaces for interaction with lower supporting wall of the seat for housing of ready-made cutting tool, and the second section located along the side surface transversally to the main cutting edge and provided with the third supporting surface for interaction with the side supporting wall of the seat for housing of ready-made cutting tool. Ready-made cutting tool has a housing with at least one seat in which a cutting plate is installed and fastened. The seat is designed as the first supporting wall transversal to the reference plane of ready-made cutting tool and a slot crossing the first supporting wall and located along the reference plane. On the side surface of the slot closest to the reference plane there made is the lower supporting wall for interaction with the second supporting surfaces on the first sections of cutting plate edges, and on the housing projection restricting the slot from the side of opposite reference plane there made is the side supporting wall for interaction with the third supporting surface of working projection of the cutting plate. On the first supporting wall there made is a threaded hole for arrangement of fasteners designed as a screw with a steep head for interaction with side surface of the cutting plate through hole.

EFFECT: improving efficiency.

3 cl, 8 dwg